Mzaidi8: /* Trivia */

Chonki Design Guide

{| class="wikitable" align="right"
|-
! scope="row" colspan="2" style="background-color:#FFFF99" | Chonki
|-
! scope="row" colspan="2" | [[File:Chonki_.png|frameless|right|480x360px|(Highlight text)]]
|-
! scope="row" style="text-align:left" | Year Of Creation
| {{{year|2020-2021}}}
|-
! scope="row" colspan="2" style="background-color:#FFFF99" | Versions
|-
! scope="row" style="text-align:left" | Current Version
| {{{currver|V 1.0}}}
|-
! scope="row" style="text-align:left" | Update Year
| {{{updyr|2020-2021}}}
|-
! scope="row" style="text-align:left" | Wins/Losses
| {{{winloss|0/0}}}
|-
! scope="row" colspan="2" style="background-color:#FFFF99" | Information and Statistics
|-
! scope="row" style="text-align:left" | Weight Class
| {{{wc|Featherweight}}}
|-
! scope="row" style="text-align:left" | Weapon Class
| {{{weapc|Shell Spinner}}}
|-
! scope="row" style="text-align:left" | Combined Wins/Losses
| {{{winloss|0/0}}}
|-
! scope="row" style="text-align:left" | Weapon Speed
| {{{TBA|0 RPM on a pallet}}}
|-
! scope="row" style="text-align:left" | Other
| {{{TBA|Chonk!!!}}}
|}
== Introduction ==
This robot had a name before a design. It born when Brian thought to himself, "Hey, it would be really funny if we named a robot Chonki and made it really, really big..." Throughout the design process the robot lived up to its name. Chonki is a 45lb shuffling shell spinner competing in the 30lb weight class. It was developed during 2020-2021. The drive system was iterated from that of Apachi. The weapon system was a brand new concept for BattleBots. The goal of Chonki was to evaluate the viability of shell spinners while taking advantage of the 1.5 time weight multiplier afforded by using a mechanism other than wheels for movement. Has not been to competition due to COVID cancellation, but showed promise during development.

Members:
*Brian Epstein (Lead)
*Dylan Fife (Mentor)
*Mihir Nagaraj
*Mesum Zaidi
*Emily Liu
*Janie Edgar
*Celina Huang
*Martha Leach
*Cole Sosnowski
*Colin Lyman

== Drive System ==
Chonki utilizes a shuffler system for drive. It consists of two shuffler modules, each with 4 HDPE feet. The feet sit on two parallel, octagonal cam shafts. These allowed for the four feet to be positioned 90 degrees from each other, so feet would always be in contact with the ground through the cam shaft's rotation. To fit inside the feet get smaller as they move away from the chassis. The longer feet have chamfers to clear the rollers and support which they sit under. The cams have offset octagonal holes to accommodate the shafts and sit inside circular cutouts in the feet, which keep them parallel with the ground as it walks. The use of the shuffling system allowed Chonki a weight bonus, bringing the max weight to 45 lbs.

== Weapon System ==

===Design Considerations===
Since the weapon on this bot also serves as its armor, it was imperative that the weapon be large enough for the robot to fit inside. An additional constraint was that it must be small enough that a reasonable thickness could be attained while still remaining under the desired percentage of the total weight of the robot (~50%).

===Nested Concept===
Originally the shell was designed as a series of rings with progressively increasing diameters. The method of joining these rings together was thoroughly discussed. The two primary options were use of fasteners and through welding. This concept was advantageous because it allowed for the rings to be cut from sheets using the waterjet
=====Fastener Method=====
Advantages:
*Avoids need to use welding (process with which we had little experience)
*Simple to align via hole placement in ring
Easy to replace damaged bolts and or rings
Disadvantages:
*Bolts are likely to shear under stress from hitting other bots
*Addition of holes to rings add stress concentrator, increasing likelihood of failure

=====Welding Method=====
Advantages:
*Very strong joint between rings if done correctly
*Difficult to align rings and keep them aligned (flats were included on rings for this purpose, but a jig would still be required)
Disadvantages:
*A single piece means the whole thing must be replaced after damage
*Welding is hard lol

===Solid Concept===

[[File:ChonkiWeapon.PNG|400px]]

Instead of doing the nested concept, we simply decided to kill the Earth and mill the shell out of a massive block of steel. With all the garnet required for the waterjet design, wasting 90% of a 200 steel block was still cheaper.

Pros:
*Less expensive than the nested ring design
*Made from one solid piece so it didn't have connection points to fail at
*Lives up the it's name

Cons:
*200 lbs of steel is heavy and our plan was to "just like, pick it up I guess" (admin got mad)
*Shell exceeded the y axis on the HAAS which complicated the CAM
*The block is still sitting in the shop and it's getting lonely

===Weapon Shaft Interface===
A tapered roller bearing fits into a housing that is attached to the top of the shell.

[[File:Bearing_Section_View.PNG]]

===Belt-Driven vs Wheel-Driven===
*Two primary methods were considered for driving the weapon: a belt/sprocket and chain system or a wheel-based system.
**The belt was dismissed due to the various past issues, such as poor tensioning, temperature deviations, and general slipping.
**Inspired by Hyperpolarized, it was later decided to drive the weapon by using a single driven wheel at the top of the bot, with rollers along the surface to give additional support. A central shaft was used as a dead axle support.

== Chassis System ==
[[File:ChonkiChassis.png|480x360px|]]
*The chassis mostly consisted of aluminum, featuring of a ¼” top and side plates and ⅛” bottom plate.
*The front and back plates were made of HDPE, which bent to form Chonki’s robustly round shape.
*The chassis had multiple rollers spaced out along its top, giving additional support to the shell track above.
*The central dead axle was constrained by two blocks, mounted to both the top and bottom plates. However, it was later determined that aligning the shaft along the two blocks was incredibly difficult, and a single longer block would have proven to be a superior solution.
**While drilling through the blocks into the shaft, a drill bit melted inside, acting surprisingly well as a pin.

== Electronics ==
{| border="1" cellspacing="1" cellpadding="1" style="width: 500px;"
|-
| Drive Motors
| Turnigy Aerodrive SK3 - 5055-280KV Brushless Outrunner Motor
 
|-
| Drive Motor Controllers
| Flipsky Dual FSESC6.6 Based upon VESC6 with Aluminum Heatsink Mini Size
|-
| Weapon Motor
| Scorpion SII-4035-250KV
|-
| Weapon Motor Controllers
| AeroStar Advance 120A HV (6~12S) Brushless ESC (Opto)
|-
| Receiver
| Hobby King 2.4Ghz Receiver 6Ch V2 
|-
| Remote Control
| Hobby King 2.4Ghz 6Ch Tx and Rx V2 
|-
| Battery
| 2x Turnigy Heavy Duty 5000mAh 6S 60C LiPo Pack w/XT90
2x Turnigy Graphene Panther 3000mAh 3S 75C Battery Pack w/XT90
|-
|}
== Trivia ==
*The Vectrax was rendered inoperable twice by Chonki members (mainly Brian) during its construction.

Chonki Design Guide

Mzaidi8:

Chonki Design Guide

2021-05-30T03:49:40Z

Mzaidi8:

Chonki Design Guide

{| class="wikitable" align="right"
|-
! scope="row" colspan="2" style="background-color:#FFFF99" | Chonki
|-
! scope="row" colspan="2" | [[File:(Image filename)|frameless|right|480x360px|(Highlight text)]]
|-
! scope="row" style="text-align:left" | Year Of Creation
| {{{year|2020-2021}}}
|-
! scope="row" colspan="2" style="background-color:#FFFF99" | Versions
|-
! scope="row" style="text-align:left" | Current Version
| {{{currver|V 1.0}}}
|-
! scope="row" style="text-align:left" | Update Year
| {{{updyr|2020-2021}}}
|-
! scope="row" style="text-align:left" | Wins/Losses
| {{{winloss|0/0}}}
|-
! scope="row" colspan="2" style="background-color:#FFFF99" | Information and Statistics
|-
! scope="row" style="text-align:left" | Weight Class
| {{{wc|Featherweight}}}
|-
! scope="row" style="text-align:left" | Weapon Class
| {{{weapc|Shell Spinner}}}
|-
! scope="row" style="text-align:left" | Combined Wins/Losses
| {{{winloss|0/0}}}
|-
! scope="row" style="text-align:left" | Weapon Speed
| {{{TBA|0 RPM on a pallet}}}
|-
! scope="row" style="text-align:left" | Other
| {{{TBA|Chonk!!!}}}
|}
== Introduction ==
This robot had a name before a design. It born when Brian thought to himself, "Hey, it would be really funny if we named a robot Chonki and made it really, really big..." Throughout the design process the robot lived up to its name. Chonki is a 45lb shuffling shell spinner competing in the 30lb weight class. It was developed during 2020-2021. The drive system was iterated from that of Apachi. The weapon system was a brand new concept for BattleBots. The goal of Chonki was to evaluate the viability of shell spinners while taking advantage of the 1.5 time weight multiplier afforded by using a mechanism other than wheels for movement. Has not been to competition due to COVID cancellation, but showed promise during development.

Members:
*Brian Epstein (Lead)
*Dylan Fife (Mentor)
*Mihir Nagaraj
*Mesum Zaidi
*Emily Liu
*Janie Edgar
*Celina Huang
*Martha Leach
*Cole Sosnowski
*Colin Lyman

== Drive System ==
Chonki utilizes a shuffler system for drive. It consists of two shuffler modules, each with 4 HDPE feet. The feet sit on two parallel, octagonal cam shafts. These allowed for the four feet to be positioned 90 degrees from each other, so feet would always be in contact with the ground through the cam shaft's rotation. To fit inside the feet get smaller as they move away from the chassis. The longer feet have chamfers to clear the rollers and support which they sit under. The cams have offset octagonal holes to accommodate the shafts and sit inside circular cutouts in the feet, which keep them parallel with the ground as it walks. The use of the shuffling system allowed Chonki a weight bonus, bringing the max weight to 45 lbs.

== Weapon System ==
===Design Considerations===
Since the weapon on this bot also serves as its armor, it was imperative that the weapon be large enough for the robot to fit inside. An additional constraint was that it must be small enough that a reasonable thickness could be attained while still remaining under the desired percentage of the total weight of the robot (~50%).

===Nested Concept===
Originally the shell was designed as a series of rings with progressively increasing diameters. The method of joining these rings together was thoroughly discussed. The two primary options were use of fasteners and through welding. This concept was advantageous because it allowed for the rings to be cut from sheets using the waterjet
=====Fastener Method=====
Advantages:
*Avoids need to use welding (process with which we had little experience)
*Simple to align via hole placement in ring
Easy to replace damaged bolts and or rings
Disadvantages:
*Bolts are likely to shear under stress from hitting other bots
*Addition of holes to rings add stress concentrator, increasing likelihood of failure

=====Welding Method=====
Advantages:
*Very strong joint between rings if done correctly
*Difficult to align rings and keep them aligned (flats were included on rings for this purpose, but a jig would still be required)
Disadvantages:
*A single piece means the whole thing must be replaced after damage
*Welding is hard lol

===Solid Concept===
Instead of doing the nested concept, we simply decided to kill the Earth and mill the shell out of a massive block of steel. With all the garnet required for the waterjet design, wasting 90% of a 200 steel block was still cheaper.

Pros:
*Less expensive than the nested ring design
*Made from one solid piece so it didn't have connection points to fail at
*Lives up the it's name

Cons:
*200 lbs of steel is heavy and our plan was to "just like, pick it up I guess" (admin got mad)
*Shell exceeded the y axis on the HAAS which complicated the CAM
*The block is still sitting in the shop and it's getting lonely

===Weapon Shaft Interface===
[[File:Bearing_Section_View.PNG|600px]]

===Belt-Driven vs Wheel-Driven===
*Two primary methods were considered for driving the weapon: a belt/sprocket and chain system or a wheel-based system.
**The belt was dismissed due to the various past issues, such as poor tensioning, temperature deviations, and general slipping.
**Inspired by Hyperpolarized, it was later decided to drive the weapon by using a single driven wheel at the top of the bot, with rollers along the surface to give additional support. A central shaft was used as a dead axle support.

== Chassis System ==
*The chassis mostly consisted of aluminum, featuring of a ¼” top and side plates and ⅛” bottom plate.
*The front and back plates were made of HDPE, which bent to form Chonki’s robustly round shape.
*The chassis had multiple rollers spaced out along its top, giving additional support to the shell track above.
*The central dead axle was constrained by two blocks, mounted to both the top and bottom plates. However, it was later determined that aligning the shaft along the two blocks was incredibly difficult, and a single longer block would have proven to be a superior solution.
**While drilling through the blocks into the shaft, a drill bit melted inside, acting surprisingly well as a pin.

== Electronics ==
{| border="1" cellspacing="1" cellpadding="1" style="width: 500px;"
|-
| Drive Motors
| Turnigy Aerodrive SK3 - 5055-280KV Brushless Outrunner Motor
 
|-
| Drive Motor Controllers
| Flipsky Dual FSESC6.6 Based upon VESC6 with Aluminum Heatsink Mini Size
|-
| Weapon Motor
| Scorpion SII-4035-250KV
|-
| Weapon Motor Controllers
| AeroStar Advance 120A HV (6~12S) Brushless ESC (Opto)
|-
| Receiver
| Hobby King 2.4Ghz Receiver 6Ch V2 
|-
| Remote Control
| Hobby King 2.4Ghz 6Ch Tx and Rx V2 
|-
| Battery
| 2x Turnigy Heavy Duty 5000mAh 6S 60C LiPo Pack w/XT90
2x Turnigy Graphene Panther 3000mAh 3S 75C Battery Pack w/XT90
|-
|}
== Trivia ==
*We realized, several weeks into the construction phase, that our current method for creating the shell would use thousands of pounds of garnet and take several days of waterjet time. It was more economical to waste 90% of piece of stock than to do this.
*Chonki was first conceived when Brian thought, "Wouldn't it be a funny if there were a bot named Chonki?"

Chonki Design Guide

2021-05-30T03:36:43Z

Mzaidi8: /* Chassis System */

Chonki Design Guide

{| class="wikitable" align="right"
|-
! scope="row" colspan="2" style="background-color:#FFFF99" | Chonki
|-
! scope="row" colspan="2" | [[File:(Image filename)|frameless|right|480x360px|(Highlight text)]]
|-
! scope="row" style="text-align:left" | Year Of Creation
| {{{year|2020-2021}}}
|-
! scope="row" colspan="2" style="background-color:#FFFF99" | Versions
|-
! scope="row" style="text-align:left" | Current Version
| {{{currver|V 1.0}}}
|-
! scope="row" style="text-align:left" | Update Year
| {{{updyr|2020-2021}}}
|-
! scope="row" style="text-align:left" | Wins/Losses
| {{{winloss|0/0}}}
|-
! scope="row" colspan="2" style="background-color:#FFFF99" | Information and Statistics
|-
! scope="row" style="text-align:left" | Weight Class
| {{{wc|Featherweight}}}
|-
! scope="row" style="text-align:left" | Weapon Class
| {{{weapc|Shell Spinner}}}
|-
! scope="row" style="text-align:left" | Combined Wins/Losses
| {{{winloss|0/0}}}
|-
! scope="row" style="text-align:left" | Weapon Speed
| {{{TBA|0 RPM on a pallet}}}
|-
! scope="row" style="text-align:left" | Other
| {{{TBA|Chonk!!!}}}
|}
== Introduction ==
This robot had a name before a design. It born when Brian thought to himself, "Hey, it would be really funny if we named a robot Chonki and made it really, really big..." Throughout the design process the robot lived up to its name. Chonki is a 45lb shuffling shell spinner competing in the 30lb weight class. It was developed during 2020-2021. The drive system was iterated from that of Apachi. The weapon system was a brand new concept for BattleBots. The goal of Chonki was to evaluate the viability of shell spinners while taking advantage of the 1.5 time weight multiplier afforded by using a mechanism other than wheels for movement. Has not been to competition due to COVID cancellation, but showed promise during development.

Members:
*Brian Epstein (Lead)
*Dylan Fife (Mentor)
*Mihir Nagaraj
*Mesum Zaidi
*Emily Liu
*Janie Edgar
*Celina Huang
*Martha Leach
*Cole Sosnowski
*Colin Lyman

== Drive System ==
Chonki utilizes a shuffler system for drive. It consists of two shuffler modules, each with 4 HDPE feet. The feet sit on two parallel, octagonal cam shafts. These allowed for the four feet to be positioned 90 degrees from each other, so feet would always be in contact with the ground through the cam shaft's rotation. To fit inside the feet get smaller as they move away from the chassis. The longer feet have chamfers to clear the rollers and support which they sit under. The cams have offset octagonal holes to accommodate the shafts and sit inside circular cutouts in the feet, which keep them parallel with the ground as it walks. The use of the shuffling system allowed Chonki a weight bonus, bringing the max weight to 45 lbs.

== Weapon System ==
===Design Considerations===
Since the weapon on this bot also serves as its armor, it was imperative that the weapon be large enough for the robot to fit inside. An additional constraint was that it must be small enough that a reasonable thickness could be attained while still remaining under the desired percentage of the total weight of the robot (~50%).

===Nested Concept===
Originally the shell was designed as a series of rings with progressively increasing diameters. The method of joining these rings together was thoroughly discussed. The two primary options were use of fasteners and through welding. This concept was advantageous because it allowed for the rings to be cut from sheets using the waterjet
=====Fastener Method=====
Advantages:
*Avoids need to use welding (process with which we had little experience)
*Simple to align via hole placement in ring
Easy to replace damaged bolts and or rings
Disadvantages:
*Bolts are likely to shear under stress from hitting other bots
*Addition of holes to rings add stress concentrator, increasing likelihood of failure

=====Welding Method=====
Advantages:
*Very strong joint between rings if done correctly
*Difficult to align rings and keep them aligned (flats were included on rings for this purpose, but a jig would still be required)
Disadvantages:
*A single piece means the whole thing must be replaced after damage
*Welding is hard lol

===Solid Concept===
Instead of doing the nested concept, we simply decided to kill the Earth and mill the shell out of a massive block of steel. With all the garnet required for the waterjet design, wasting 90% of a 200 steel block was still cheaper.

Pros:
*Less expensive than the nested ring design
*Made from one solid piece so it didn't have connection points to fail at

===Belt-Driven vs Wheel-Driven===
*Two primary methods were considered for driving the weapon: a belt/sprocket and chain system or a wheel-based system.
**The belt was dismissed due to the various past issues, such as poor tensioning, temperature deviations, and general slipping.
**Inspired by Hyperpolarized, it was later decided to drive the weapon by using a single driven wheel at the top of the bot, with rollers along the surface to give additional support. A central shaft was used as a dead axle support.

== Chassis System ==
*The chassis mostly consisted of aluminum, featuring of a ¼” top and side plates and ⅛” bottom plate.
*The front and back plates were made of HDPE, which bent to form Chonki’s robustly round shape.
*The chassis had multiple rollers spaced out along its top, giving additional support to the shell track above.
*The central dead axle was constrained by two blocks, mounted to both the top and bottom plates. However, it was later determined that aligning the shaft along the two blocks was incredibly difficult, and a single longer block would have proven to be a superior solution.
**While drilling through the blocks into the shaft, a drill bit melted inside, acting surprisingly well as a pin.

== Electronics ==
{| border="1" cellspacing="1" cellpadding="1" style="width: 500px;"
|-
| Drive Motors
| Turnigy Aerodrive SK3 - 5055-280KV Brushless Outrunner Motor
 
|-
| Drive Motor Controllers
| Flipsky Dual FSESC6.6 Based upon VESC6 with Aluminum Heatsink Mini Size
|-
| Weapon Motor
| Scorpion SII-4035-250KV
|-
| Weapon Motor Controllers
| AeroStar Advance 120A HV (6~12S) Brushless ESC (Opto)
|-
| Receiver
| Hobby King 2.4Ghz Receiver 6Ch V2 
|-
| Remote Control
| Hobby King 2.4Ghz 6Ch Tx and Rx V2 
|-
| Battery
| 2x Turnigy Heavy Duty 5000mAh 6S 60C LiPo Pack w/XT90
2x Turnigy Graphene Panther 3000mAh 3S 75C Battery Pack w/XT90
|-
|}

Chonki Design Guide

2021-05-30T03:21:45Z

Mzaidi8: /* Weapon System */

Chonki Design Guide

{| class="wikitable" align="right"
|-
! scope="row" colspan="2" style="background-color:#FFFF99" | Chonki
|-
! scope="row" colspan="2" | [[File:(Image filename)|frameless|right|480x360px|(Highlight text)]]
|-
! scope="row" style="text-align:left" | Year Of Creation
| {{{year|2020-2021}}}
|-
! scope="row" colspan="2" style="background-color:#FFFF99" | Versions
|-
! scope="row" style="text-align:left" | Current Version
| {{{currver|V 1.0}}}
|-
! scope="row" style="text-align:left" | Update Year
| {{{updyr|2020-2021}}}
|-
! scope="row" style="text-align:left" | Wins/Losses
| {{{winloss|0/0}}}
|-
! scope="row" colspan="2" style="background-color:#FFFF99" | Information and Statistics
|-
! scope="row" style="text-align:left" | Weight Class
| {{{wc|Featherweight}}}
|-
! scope="row" style="text-align:left" | Weapon Class
| {{{weapc|Shell Spinner}}}
|-
! scope="row" style="text-align:left" | Combined Wins/Losses
| {{{winloss|0/0}}}
|-
! scope="row" style="text-align:left" | Weapon Speed
| {{{TBA|0 RPM on a pallet}}}
|-
! scope="row" style="text-align:left" | Other
| {{{TBA|Chonk!!!}}}
|}
== Introduction ==
This robot had a name before a design. It born when Brian thought to himself, "Hey, it would be really funny if we named a robot Chonki and made it really, really big..." Throughout the design process the robot lived up to its name. Chonki is a 45lb shuffling shell spinner competing in the 30lb weight class. It was developed during 2020-2021. The drive system was iterated from that of Apachi. The weapon system was a brand new concept for BattleBots. The goal of Chonki was to evaluate the viability of shell spinners while taking advantage of the 1.5 time weight multiplier afforded by using a mechanism other than wheels for movement. Has not been to competition due to COVID cancellation, but showed promise during development.

Members:
*Brian Epstein (Lead)
*Dylan Fife (Mentor)
*Mihir Nagaraj
*Mesum Zaidi
*Emily Liu
*Janie Edgar
*Celina Huang
*Martha Leach
*Cole Sosnowski
*Colin Lyman

== Drive System ==
Chonki utilizes a shuffler system for drive. It consists of two shuffler modules, each with 4 HDPE feet. The feet sit on two parallel, octagonal cam shafts. These allowed for the four feet to be positioned 90 degrees from each other, so feet would always be in contact with the ground through the cam shaft's rotation. To fit inside the feet get smaller as they move away from the chassis. The longer feet have chamfers to clear the rollers and support which they sit under. The cams have offset octagonal holes to accommodate the shafts and sit inside circular cutouts in the feet, which keep them parallel with the ground as it walks. The use of the shuffling system allowed Chonki a weight bonus, bringing the max weight to 45 lbs.

== Weapon System ==
===Design Considerations===
Since the weapon on this bot also serves as its armor, it was imperative that the weapon be large enough for the robot to fit inside. An additional constraint was that it must be small enough that a reasonable thickness could be attained while still remaining under the desired percentage of the total weight of the robot (~50%).

===Belt-Driven vs Wheel-Driven===
*Two primary methods were considered for driving the weapon: a belt/sprocket and chain system or a wheel-based system.
**The belt was dismissed due to the various past issues, such as poor tensioning, temperature deviations, and general slipping.
**Inspired by Hyperpolarized, it was later decided to drive the weapon by using a single driven wheel at the top of the bot, with rollers along the surface to give additional support. A central shaft was used as a dead axle support.

===Nested Concept===
Originally the shell was designed as a series of rings with progressively increasing diameters. The method of joining these rings together was thoroughly discussed. The two primary options were use of fasteners and through welding. This concept was advantageous because it allowed for the rings to be cut from sheets using the waterjet
=====Fastener Method=====
Advantages:
*Avoids need to use welding (process with which we had little experience)
*Simple to align via hole placement in ring
Easy to replace damaged bolts and or rings
Disadvantages:
*Bolts are likely to shear under stress from hitting other bots
*Addition of holes to rings add stress concentrator, increasing likelihood of failure

=====Welding Method=====
Pros:
*Very strong joint between rings if done correctly
*Difficult to align rings and keep them aligned (flats were included on rings for this purpose, but a jig would still be required)
Cons:
*A single piece means the whole thing must be replaced after damage
*Welding is hard lol

===Solid Concept===
Instead of doing the nested concept, we simply decided to kill the Earth and mill the shell out of a massive block of steel.

== Chassis System ==
== Electronics ==
{| border="1" cellspacing="1" cellpadding="1" style="width: 500px;"
|-
| Drive Motors
| Turnigy Aerodrive SK3 - 5055-280KV Brushless Outrunner Motor
 
|-
| Drive Motor Controllers
| Flipsky Dual FSESC6.6 Based upon VESC6 with Aluminum Heatsink Mini Size
|-
| Weapon Motor
| Scorpion SII-4035-250KV
|-
| Weapon Motor Controllers
| AeroStar Advance 120A HV (6~12S) Brushless ESC (Opto)
|-
| Receiver
| Hobby King 2.4Ghz Receiver 6Ch V2 
|-
| Remote Control
| Hobby King 2.4Ghz 6Ch Tx and Rx V2 
|-
| Battery
| 2x Turnigy Heavy Duty 5000mAh 6S 60C LiPo Pack w/XT90
2x Turnigy Graphene Panther 3000mAh 3S 75C Battery Pack w/XT90
|-
|}

Chonki Design Guide

2021-05-30T03:21:23Z

Mzaidi8: /* Weapon System */

Chonki Design Guide

{| class="wikitable" align="right"
|-
! scope="row" colspan="2" style="background-color:#FFFF99" | Chonki
|-
! scope="row" colspan="2" | [[File:(Image filename)|frameless|right|480x360px|(Highlight text)]]
|-
! scope="row" style="text-align:left" | Year Of Creation
| {{{year|2020-2021}}}
|-
! scope="row" colspan="2" style="background-color:#FFFF99" | Versions
|-
! scope="row" style="text-align:left" | Current Version
| {{{currver|V 1.0}}}
|-
! scope="row" style="text-align:left" | Update Year
| {{{updyr|2020-2021}}}
|-
! scope="row" style="text-align:left" | Wins/Losses
| {{{winloss|0/0}}}
|-
! scope="row" colspan="2" style="background-color:#FFFF99" | Information and Statistics
|-
! scope="row" style="text-align:left" | Weight Class
| {{{wc|Featherweight}}}
|-
! scope="row" style="text-align:left" | Weapon Class
| {{{weapc|Shell Spinner}}}
|-
! scope="row" style="text-align:left" | Combined Wins/Losses
| {{{winloss|0/0}}}
|-
! scope="row" style="text-align:left" | Weapon Speed
| {{{TBA|0 RPM on a pallet}}}
|-
! scope="row" style="text-align:left" | Other
| {{{TBA|Chonk!!!}}}
|}
== Introduction ==
This robot had a name before a design. It born when Brian thought to himself, "Hey, it would be really funny if we named a robot Chonki and made it really, really big..." Throughout the design process the robot lived up to its name. Chonki is a 45lb shuffling shell spinner competing in the 30lb weight class. It was developed during 2020-2021. The drive system was iterated from that of Apachi. The weapon system was a brand new concept for BattleBots. The goal of Chonki was to evaluate the viability of shell spinners while taking advantage of the 1.5 time weight multiplier afforded by using a mechanism other than wheels for movement. Has not been to competition due to COVID cancellation, but showed promise during development.

Members:
*Brian Epstein (Lead)
*Dylan Fife (Mentor)
*Mihir Nagaraj
*Mesum Zaidi
*Emily Liu
*Janie Edgar
*Celina Huang
*Martha Leach
*Cole Sosnowski
*Colin Lyman

== Drive System ==
Chonki utilizes a shuffler system for drive. It consists of two shuffler modules, each with 4 HDPE feet. The feet sit on two parallel, octagonal cam shafts. These allowed for the four feet to be positioned 90 degrees from each other, so feet would always be in contact with the ground through the cam shaft's rotation. To fit inside the feet get smaller as they move away from the chassis. The longer feet have chamfers to clear the rollers and support which they sit under. The cams have offset octagonal holes to accommodate the shafts and sit inside circular cutouts in the feet, which keep them parallel with the ground as it walks. The use of the shuffling system allowed Chonki a weight bonus, bringing the max weight to 45 lbs.

== Weapon System ==
===Design Considerations===
Since the weapon on this bot also serves as its armor, it was imperative that the weapon be large enough for the robot to fit inside. An additional constraint was that it must be small enough that a reasonable thickness could be attained while still remaining under the desired percentage of the total weight of the robot (~50%).

===Belt-Driven vs Wheel-Driven===
*Two primary methods were considered for driving the weapon: a belt/sprocket and chain system or a wheel-based system.
**The belt was dismissed due to the various past issues, such as poor tensioning, temperature deviations, and general slipping.
**Inspired by Hyperpolarized, it was later decided to drive the weapon by using a single driven wheel at the top of the bot, with rollers along the surface to give additional support. A central shaft was used as a dead axle support.

===Nested Concept===
Originally the shell was designed as a series of rings with progressively increasing diameters. The method of joining these rings together was thoroughly discussed. The two primary options were use of fasteners and through welding. This concept was advantageous because it allowed for the rings to be cut from sheets using the waterjet
=====Fastener Method=====
Advantages:
*Avoids need to use welding (process with which we had little experience)
*Simple to align via hole placement in ring
Easy to replace damaged bolts and or rings
Disadvantages:
*Bolts are likely to shear under stress from hitting other bots
*Addition of holes to rings add stress concentrator, increasing likelihood of failure

=====Welding Method=====
Pros:
*Very strong joint between rings if done correctly
*Difficult to align rings and keep them aligned (flats were included on rings for this purpose, but a jig would still be required)
Cons:
*A single piece means the whole thing must be replaced after damage
*Welding is hard lol

===Solid Concept===
Instead of doing the nested concept, we simply decided to kill the Earth and mill the shell out of a massive block of steel.

== Chassis System ==
== Electronics ==
{| border="1" cellspacing="1" cellpadding="1" style="width: 500px;"
|-
| Drive Motors
| Turnigy Aerodrive SK3 - 5055-280KV Brushless Outrunner Motor
 
|-
| Drive Motor Controllers
| Flipsky Dual FSESC6.6 Based upon VESC6 with Aluminum Heatsink Mini Size
|-
| Weapon Motor
| Scorpion SII-4035-250KV
|-
| Weapon Motor Controllers
| AeroStar Advance 120A HV (6~12S) Brushless ESC (Opto)
|-
| Receiver
| Hobby King 2.4Ghz Receiver 6Ch V2 
|-
| Remote Control
| Hobby King 2.4Ghz 6Ch Tx and Rx V2 
|-
| Battery
| 2x Turnigy Heavy Duty 5000mAh 6S 60C LiPo Pack w/XT90
2x Turnigy Graphene Panther 3000mAh 3S 75C Battery Pack w/XT90
|-
|}

2020-02-29T01:25:50Z

Mzaidi8:

{| class="wikitable" align="right"
|-
! scope="row" colspan="2" style="background-color:#FFFF99" | Barbi
|-
! scope="row" colspan="2" | [[File:(BarbiProfile.png)|frameless|right|480x360px|(Highlight text)]]
|-
! scope="row" style="text-align:left" | Year of Creation
| {{{year|2019-2020}}}
|-
! scope="row" colspan="2" style="background-color:#FFFF99" | Versions
|-
! scope="row" style="text-align:left" | Current Version
| {{{currver|1.0}}}
|-
! scope="row" style="text-align:left" | Update Year
| {{{updyr|2019-2020}}}
|-
! scope="row" style="text-align:left" | Wins/Losses
| {{{winloss|1/2}}}
|-
! scope="row" colspan="2" style="background-color:#FFFF99" | Information and Statistics
|-
! scope="row" style="text-align:left" | Weight Class
| {{{wc|BeetleWeight}}}
|-
! scope="row" style="text-align:left" | Weapon Class
| {{{weapc|Beater Bar}}}
|-
! scope="row" style="text-align:left" | Combined Wins/Losses
| {{{winloss|1/2}}}
|-
! scope="row" style="text-align:left" | Weapon Speed
| {{{TBA|36000 Max RPM}}}
|}

Barbi is a bar beater that beats bars.

== Competitions ==

=== [[Motorama_2020|Motorama 2020]] ===

*Results: 1-2
**Bracket Style: Double Elimination
***[(Video Link) Victory vs Pipe Bomb]
****Barbi's debut in its new Barbi world ended with a Pipe Bomb exploding.
****After several moments of confused flailing, Pipe Bomb formed an intimate connection with our weapon that resulted in the formation of a new multi-bot, Pipe and Bomb.
***[(Video Link) Defeat vs No Regrets]
****Barbi's next match escalated to a perilous, high-stakes match against a piece of plastic on wheels.
****After getting crowded by the multi-bot's wedge and plastic wall combo, Barbi failed to win the hearts of the judges.
***[(Video Link) Defeat vs Telefrag]
****Barbi's final match in Motorama revealed a key and oft-overlooked element of robotic combat: the weapon actually spinning.
****Following the bone-chilling realization that the weapon was completely immobile, Barbi decided to assert dominance by attacking their weapon with our bottom plate.

== Version ==

=== Barbi V1.0 ===

Created by: James Peavy, Manu Gummaraju, Mesum Zaidi, Micah Morris, Mihir Nagaraj, Mitul Pandya, Nadeen Mansour

{| border="1" cellspacing="1" cellpadding="1" style="width: 500px;"
|-
| Drive Motors
| 22mm DC Gearmotor with Aluminum Gearbox 
|-
| Drive Motor Controllers
| Scorpion Mini
|-
| Weapon Motor
| Turnigy 2836 Brushless 450-Size Heli Motor 3700kv
|-
| Weapon Motor Controllers
| HobbyKing 40A ESC w/UBEC 4A
|-
| Receiver
| Hobby King 2.4Ghz Receiver 6Ch V2 
|-
| Remote Control
| Hobby King 2.4Ghz 6Ch Tx and Rx V2 
|-
| Battery
| The black ones
|-
|}

==== Problems ====

* The belt did not properly fit into the pulley and continuously fell into the stator
* The weapon motor burned out due to a combination of a (possibly) overpowered ESE, an opponent that was resistant to our primary method of attack, and (definitely) incompetent driving
* Weight savings on top and bottom plate led to the deformation of the material and caused the electronics to sag

==== Good aspects ====

* Absurdly powerful weapon
* Arguably the peak of Motorama 2020
* Almost successfully completed a self destruct sequence
* Robust design and construction of chassis

==== Changes/Improvements ====

* Redesign weapon with aluminum base w/ steel bolts to improve range and redistribute weight for better uses
* Reinforce the top and bottom plates (redesigning, possibly aluminum??)
* Remaking side plates because they got banged up
* Redesigning the hubs to properly constrain the belt

== Notes: ==

Joke: Our Robot

Naming Inspiration: The toy we always played with as children 

[[Category:BattleBots]] [[Category:BeetleWeights]]

File:BarbiProfile.png

2020-02-29T01:23:33Z

Mzaidi8:

Barbi

2020-02-29T01:22:48Z

Mzaidi8:

{| class="wikitable" align="right"
|-
! scope="row" colspan="2" style="background-color:#FFFF99" | Barbi
|-
! scope="row" colspan="2" | [[File:(Image from iOS (1).jpg)|frameless|right|480x360px|(Highlight text)]]
|-
! scope="row" style="text-align:left" | Year of Creation
| {{{year|2019-2020}}}
|-
! scope="row" colspan="2" style="background-color:#FFFF99" | Versions
|-
! scope="row" style="text-align:left" | Current Version
| {{{currver|1.0}}}
|-
! scope="row" style="text-align:left" | Update Year
| {{{updyr|2019-2020}}}
|-
! scope="row" style="text-align:left" | Wins/Losses
| {{{winloss|1/2}}}
|-
! scope="row" colspan="2" style="background-color:#FFFF99" | Information and Statistics
|-
! scope="row" style="text-align:left" | Weight Class
| {{{wc|BeetleWeight}}}
|-
! scope="row" style="text-align:left" | Weapon Class
| {{{weapc|Beater Bar}}}
|-
! scope="row" style="text-align:left" | Combined Wins/Losses
| {{{winloss|1/2}}}
|-
! scope="row" style="text-align:left" | Weapon Speed
| {{{TBA|36000 Max RPM}}}
|}

Barbi is a bar beater that beats bars.

== Competitions ==

=== [[Motorama_2020|Motorama 2020]] ===

*Results: 1-2
**Bracket Style: Double Elimination
***[(Video Link) Victory vs Pipe Bomb]
****Barbi's debut in its new Barbi world ended with a Pipe Bomb exploding.
****After several moments of confused flailing, Pipe Bomb formed an intimate connection with our weapon that resulted in the formation of a new multi-bot, Pipe and Bomb.
***[(Video Link) Defeat vs No Regrets]
****Barbi's next match escalated to a perilous, high-stakes match against a piece of plastic on wheels.
****After getting crowded by the multi-bot's wedge and plastic wall combo, Barbi failed to win the hearts of the judges.
***[(Video Link) Defeat vs Telefrag]
****Barbi's final match in Motorama revealed a key and oft-overlooked element of robotic combat: the weapon actually spinning.
****Following the bone-chilling realization that the weapon was completely immobile, Barbi decided to assert dominance by attacking their weapon with our bottom plate.

== Version ==

=== Barbi V1.0 ===

Created by: James Peavy, Manu Gummaraju, Mesum Zaidi, Micah Morris, Mihir Nagaraj, Mitul Pandya, Nadeen Mansour

{| border="1" cellspacing="1" cellpadding="1" style="width: 500px;"
|-
| Drive Motors
| 22mm DC Gearmotor with Aluminum Gearbox 
|-
| Drive Motor Controllers
| Scorpion Mini
|-
| Weapon Motor
| Turnigy 2836 Brushless 450-Size Heli Motor 3700kv
|-
| Weapon Motor Controllers
| HobbyKing 40A ESC w/UBEC 4A
|-
| Receiver
| Hobby King 2.4Ghz Receiver 6Ch V2 
|-
| Remote Control
| Hobby King 2.4Ghz 6Ch Tx and Rx V2 
|-
| Battery
| The black ones
|-
|}

==== Problems ====

* The belt did not properly fit into the pulley and continuously fell into the stator
* The weapon motor burned out due to a combination of a (possibly) overpowered ESE, an opponent that was resistant to our primary method of attack, and (definitely) incompetent driving
* Weight savings on top and bottom plate led to the deformation of the material and caused the electronics to sag

==== Good aspects ====

* Absurdly powerful weapon
* Arguably the peak of Motorama 2020
* Almost successfully completed a self destruct sequence
* Robust design and construction of chassis

==== Changes/Improvements ====

* Redesign weapon with aluminum base w/ steel bolts to improve range and redistribute weight for better uses
* Reinforce the top and bottom plates (redesigning, possibly aluminum??)
* Remaking side plates because they got banged up
* Redesigning the hubs to properly constrain the belt

== Notes: ==

Joke: Our Robot

Naming Inspiration: The toy we always played with as children 

[[Category:BattleBots]] [[Category:BeetleWeights]]